Circumferential matrix system



FIG. 1 is an isometric view of a circumferential matrix system showing our new design;

FIG. 2 is a first side view thereof;

FIG. 3 is a second side view thereof;

FIG. 4 is a rear side view thereof;

FIG. 5 is a front side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the figures are included for the purpose of illustrating portions of the circumferential matrix system and form no part of the claimed design. 

CLAIM The ornamental design for a circumferential matrix system, as shown and described. 